{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67537",
    "entityType": "User",
    "nonce": "0xd02fd20a3fa66a2b96bc075b9e3c1cd0848f3da655e055fdc0b8538affc67c6d",
    "signature": "0x16b6efef7951663231bdedaaec83613e4fdc5031dbd5a55b77196cc560f4b3fe53a8897a4f39a158abbb487629de4a7f66d08e66f469257e2075e528e578d16e1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}