code: function (params) {
    const oThis = this
    ;
  
    params = params || {};
    oThis.beneficiary = params.beneficiary;
    oThis.toStakeAmount = params.to_stake_amount;
    oThis.uuid = params.uuid;
  }
docs: Start Stake Service constructor
  
  @param {object} params -
  @param {string} params.beneficiary - Staked amount beneficiary address
  @param {number} params.to_stake_amount - Amount (in wei) to stake
  @param {string} params.uuid - Branded Token UUID
  
  @constructor