{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0xb69d78132bf98f034c511146b6dab155a876b98c63cc651c44b5e9975962fd29",
    "signature": "0x8f72e1cb644912779684f14de46cdaa9832dd2354e76b0497c44e8f76053fa79201a6e80926967e94c59ba649dac2c1a32d6f0348ad7738501ca580dc74f31461b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}