{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0xcf5fa20b49bb0e62e46a93756279d6cf426ccd16e8536e3997e2d1eba35e4a43",
    "signature": "0xf148f6294cfe148eb6eabfb3564c8543f5d31cd48418b9285a095946e0b3a2285952eff4720195a28c000b7ffcf19d7101aa670c136f5f0af3d3d48252678bc31c",
    "signer": "0x07d3e7EaDb158540A049c457f0057e9f13aaB3c2",
    "userId": "935480784"
  }
}