{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "950478625",
    "entityType": "User",
    "nonce": "0x9d2af995b8ecc3f1b966596f2252022e44d6d91f7acd4d98823bdf8e4ba8bd9e",
    "signature": "0x02ec042e8aaae8270c5e8d02b2424676396790bf70894ebc014ec6f087b25cac473f644a0ecde404fd4ef94b15bbb6ad454a583e384d93337868a35f3e2a5e0c1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}