{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x9cb59e49a27c7194d82cc41bda2d0ff42b0d3180e331bea0761c461197b068a4",
    "signature": "0xc63572c0ca1f12628a5cd496431be1d1b242dd8c9e4c8d47270f164ef95f33c922e2eee78500a31a560857ef81f601e0fd3825346bdd067e4175a51d47232ed01c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}