{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcff81ad429c171787d2ed6882c89c9b64bded70e98057b09d5cb7e3968618551",
    "signature": "0x0aff1e80987dfb7a3e0a431a8b7c525b4a5374e46e96aa5141210fcbecb7acc201eab4115e3f9012b34bc2b69971d344a1ad65d47aefa328401076c267e0b9301b",
    "signer": "0xcA687e34E35EDD58A483fF7279f3F2271F0691FC",
    "userId": "247794804"
  }
}