{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x1cb59e2a7859e3006aba6d38b873a8adac83e8018a56855144c2e0fef118e777",
    "signature": "0xdb38f79eb2f64585c60365ac744bf74cfe3fcaec9a43c2042d488533d680c33f2d2d9eca6838a60ba4bf8e591dd185acd3d316c6104d5d047eb039c3173ffa301c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}