{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13509",
    "entityType": "User",
    "nonce": "0x20a9356b8f81c885e4bbef30b3a8bed48118ffa910ee2c6abf052b0cc362c558",
    "signature": "0x0c049632348095856af071b4b2456593fa7cb6b481c4518eeb747581ee65b5f86c2e982dcad149cdb357a363cd5481b49109aaa07c01fe4b0107056cce4e67f41c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}