{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13191",
    "entityType": "User",
    "nonce": "0x82a35b6ecfea390f6d8a3de72edcc045c81ca24e3de659f260dee6e65f28c546",
    "signature": "0xa6dd8dd94620b516550943a4ab17dae1af11081ff43a4a3a085c52eb32c3b1873b880c81e57ee72027c66814f72e342b2c82ab95efda1221dd35c541d7a008da1c",
    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}