{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37871",
    "entityType": "User",
    "nonce": "0x80f5075f9865bcb39bc38179226dd31ffc406ea90a31aa979ed848b6a4736d32",
    "signature": "0x507dc39eac31b8f6ce78d6f6a9986596043a579a994ca48f5b2a46f13171b1061d04b9768f07e999d31c33b4995b6e582f880d3790cf96c2b386e6d9d61d1e111c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}