{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0x4576134028119ada71843ff3bf143c6b7b15f358f986ae7b63a943b55e00de7e",
    "signature": "0xd978084e7ae7239883b8a6170e0a436aa189fa5caeb0a13ca76dca2f3b4e47451332aebc4f39a2c023634a061abb6d931d23414515b2e1df96b4404eae9fe2a21b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}