{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0x9387cbd48e652cdf6ada900901acbcbe3c80aeb33d97278e7f52afb183927056",
    "signature": "0x4fa318f00aad2fd8ea535ee91b37014ccac60d11d433619f36b6b90b21e9b75339a466b1473e4392cd5481bd17a53eedff5c0b58775837064e9fd59927e0245e1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}