{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188336",
    "entityType": "User",
    "nonce": "0x506ec8be89271e5cd8c94e04ab60a15cb92a9deb8f6c28ec986084cb8a56e7b7",
    "signature": "0xbf083b9275e7e7c4caa12936f1c4ad99a903b66ebbd11594313a9041f6d41f470514a5d813702352d3e60a2b28863da5ba5eff5f329b74353c18e55eb4f84d6f1c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}