{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670965",
    "entityType": "User",
    "nonce": "0x2df48c64eade7fe300bdfa4329aeb13f5b91d494fcb5460e5a9f2a764c848afa",
    "signature": "0x7c5bc85f71f659f86f55909a5adb1dd96493c81bbbb2f999fe4344ea4993698c2ea78025edc74b2c0483ae5945827c79cfe1ea8aaa8225d88236163a92c60d911c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}