{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6cb0e842377a268b19e32f28d77e0f2c090f01ab81db1e1ba2fe65ff69d486d7",
    "signature": "0xae634cf129f91270c1dbe8cec1c9d518d63955014a7be3076b6eea31a208031a257346d37a7e634e6e6bba3d1921e5df7d2a1e18d59fd765b6d59910688d489e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}