code: async def set_review(self, **params):
  		
  		if params.get("message"):
  			params = json.loads(params.get("message", "{}"))
  		
  		if not params:
  			return {"error":400, "reason":"Missed required fields"}
  
  		cid = int(params.get("cid", 0))
  		txid = params.get("txid")
  		coinid = params.get("coinid")
  
  		try:
  			coinid = coinid.replace("TEST", "")
  		except:
  			pass
  		
  		# Get content
  		database = client[coinid]
  		content_collection = database[settings.CONTENT]
  		content = await content_collection.find_one({"cid":cid})
  		if not content:
  			return {"error":404, "reason":"Not found current content"}
  
  		database = client[coinid]
  		review_collection = database[settings.REVIEW]		
  		await review_collection.insert_one({"cid":cid, "confirmed":None, 
  											"txid":txid, "coinid":coinid})
  		return {"result":"ok"}
docs: Writes review for content
  		Accepts:
  		- cid
  		- review
  		- public_key
  		- rating
  		- txid
  		- coinid