{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037140",
    "entityType": "User",
    "nonce": "0x74d81de98284432ea1c41d1b47b3963fe2ea1d9f107c011f2876b9832719ac86",
    "signature": "0x920783808de0a44ce6e113629e86f03104776ad3da968c2dad2771d9bf72956c0aea8eea12a7439be3f1059eea7ddb38cdf606aaff2fbe6aff3deb0b0c9411341c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}