{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54899",
    "entityType": "User",
    "nonce": "0xcf7b4b1d4930e9299dc22c76e3fa072a7fdda7480ce570ea3b10efeb1c56b298",
    "signature": "0x43417e80ae67cac06771154978ac8853cdbefb68b7495e8569f4aa21ff73b5935b5f1e554250ca74e1256ab8b100aa12224fc63811fe5a1f072e7fcf020bc9651b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}