{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0xa3eb81a83e47c68d36183013c16b6e950590d0fd00df8b6530fef45c905c175c",
    "signature": "0x14c53a3adfca57e4105d171e28e9a26d5737f066cd92ec1abd9ffc9e98e7432b3e132b8d000b6e98e7bd71c6bbd57d60b9cc28c6290c195e1c1a8d6111c155ef1c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}