{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475979959",
    "entityType": "User",
    "nonce": "0x45a16e8f6a119f706ef868a1ba9167921ed1d8216d35c5e25b8ed1426feadf68",
    "signature": "0x2b923a5c99edcc5a7937640d0bcf3163bd390ee0f58cc575c035e2302557ef400bef8cb69bfbe7a00b85d8c344f43b6ea53bce72b0e3fd5b22a31847220d23f71b",
    "signer": "0xcBFBf860488b647E167A7020ac01A0A0c34Bf981",
    "userId": "4601100"
  }
}