{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x74d79bc98cf6def1b6cda9dee3f0fdeba9e4b415f681b7b8c272adbe133a4198",
    "signature": "0x3c844860af9942121f46be741760eebfb65d79dfd2ff5869fa38fb20617dcbda3010f728a296aa7fbd55827120be0e1146c0f4eec471172b6ee845c1abd0dc9d1c",
    "signer": "0x09B272A00c21FcBced8F768468e39b2de1081C1c",
    "userId": "575254579"
  }
}