{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88650",
    "entityType": "User",
    "nonce": "0x1fee49a89b59f2a32095de1b0c300139305d002477111d52fe88045ae5de4720",
    "signature": "0x7ca942147bb9c06e3414e38080691d0b6f1d621e7a9164edef16e5c10e8f21ca6839cf13a997800ff74534fb3a7de4591584ca8e0cca7281eef9f9d2096748a11c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}