{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218904",
    "entityType": "User",
    "nonce": "0xd08dd82c04ae8b741d78cb8638c82c6309558097977ef7f3f3bddf4f2b5b6c2d",
    "signature": "0x15c25a2d681b151be27f4abd1dbf43d2cbcb6caf45aaa48053bde43ea427273262a5d24019dff6a8a03ed2bc0c07dfabb7fbe87f54e8c9078fbe6d86e4a775831c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}