{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120374",
    "entityType": "User",
    "nonce": "0xb2d373ad08156246e1b3508fdee312c9f363cdda9a700d415c634d48d00fdab6",
    "signature": "0x12e107cd2decf138d2ac4534051917809ad50bfeffe209b8490fe70b647091ea5b3f3d2d4e1de0dceed44eb1c84f04efa9e4703a9b0be47d423dfc5d6a9e91001c",
    "signer": "0x70cf7a997d3508eB7F367253E1A4933a59Ddb23e",
    "userId": "322427773"
  }
}