{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346509",
    "entityType": "User",
    "nonce": "0xc7a35f415f761ab105d8a2c62f3d4e00f0b3be54f5bd2ca499c7675841b0ee1b",
    "signature": "0xea836dc7a5204f9e8fd42e1d3434a09eef4217c25c1f1b1468c4a567c4fa771054f3c05a82b8a22a05050ad985a68f74f922acdfe54ab5560f1ce15cf8aa11db1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}