{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7de806a5b1545a9dc4837eee9b80245dfa1d19c52d79f913daf6e81e37f560bc",
    "signature": "0x2a7de5a83cf5ee67880de2730a5b9755b020d02f3646e5189bcaca030862cf0918c8f0dc8e9a919685508dd7edc062e371a0eccc97c8ed06a109ee78f29288a11b",
    "signer": "0x33769231a1466b9f67935370047955160954f3B3",
    "userId": "451488999"
  }
}