{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe5f77aaec9b49c70ae32457cace7e3d0726d59dc8e4ae4064b7b1beb93ad337b",
    "signature": "0x818ac3f1fded6b5a0001f8f33c0726850c3e42693dbe00c815d06a0919c975fe22c0781f86c9cca1d581122fc6068e9fffed257298becf7073febfc4ca29eb941c",
    "signer": "0x9EAC8FeA66F5a3560BE6a62AE736E54E8dc9A681",
    "userId": "769340187"
  }
}