{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x872e9f29dbef73135273b84fcd1f2e48766bb296f67868abfd03bc7b10d525ed",
    "signature": "0xac240f067ba5f172bcaca4deb51865b1057814a8892a19b4991f32efe1f909581405a413a9d53205d6316d28aa8944e885b1a827db4a93a1cb0bbf32baf8123e1b",
    "signer": "0x647053e7d7A569aebB020C433b0FD5Ab5d0bb277",
    "userId": "257259514"
  }
}