{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xa47a76d7cd13c286289d267694917225db1481179a07957fe1eee56d3711fd4a",
    "signature": "0xfdc82c775d596923408f679c366cb6ef25b35427af9dceafd870b66af7f2700e285919e778186addbcad392242a63fe0bf51a103aa91fa3c2533221af6beab821b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}