{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x9a43fcaa6f3c49f5add8ea73362aaffc306322b8a37eba8af3e9c6e8f54f15c7",
    "signature": "0x33131c655a69aee0bb8a7793c22f246ea2298bac940e447c6ceba7900b786cec116800a3c6d1f3c85487f58b931abf408a80e67f3589801340b7a853b43b5f231b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}