{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8014fe2fdb9268d58a917dc884f8ac7267e04504a113e7ee0164a2ae5ec19e4b",
    "signature": "0x77f00b99ff2e30b7c5f36fa29b3536513cc930dd5c8fa8989fce3aebb5d9488523a261712240a3fce533b7b08fb227858271917a20e7a7b3eb4610e8336f98fa1b",
    "signer": "0xA0c86Dd552ECf9E3a1778f48231aB30F3Ac4Df5a",
    "userId": "824978667"
  }
}