{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "236503890",
    "entityType": "User",
    "nonce": "0x34208dddecc90ea426b4304890722603177e7c99feabc16b8787a0f972609880",
    "signature": "0x984a32815a7d4c55ba7c34f9adecfe1717e1ac845f8a8b0ce96f5a30d700b0571902136b0bb2f4ea1750815dc13ad2120bb80ce4a5b7fbe52fdc7be1a49ef2051c",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}