{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c95ab0b957d7989e1367c812b85dbb5137a5631517b74dcca6f086fd8343e98",
    "signature": "0x3267ae60992f715d4a5c0d130546539b15acc40f76b1be18b059057b946eb00b7fb0011eeab0c1c13b34f08555765d0df014a52b10fda68e6ec8a852ccfe68641b",
    "signer": "0x201C6Bb81130db332595F298e6Bd9Cc2FcCa7e97",
    "userId": "916124070"
  }
}