{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348251",
    "entityType": "User",
    "nonce": "0xcf4ead6226cc2b703b75e9ea1ab96dc8b2a9867c8cad9a570a8089e82d159a00",
    "signature": "0x67a25202bf44d392da6b65a98e57c92c49ff69c086055e0829d892eb49b75c1958ee4e2185844734b52582d212d0e9b6c4728936d5a6b1a59009a2f4e76fe2ff1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}