{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0xd98979055dce208174aaf7d724301503d2d7a9514a62ef311b68318e4af81e85",
    "signature": "0xf39ee094da536a36b5e993631fec4a90fb0999ce70a3258a64ddedb36981f44c59024a6de10eb40bc24b82e6e68870afcd490215ff4cf0e123995d7bb08a0ee41b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}