{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530504518",
    "entityType": "User",
    "nonce": "0x51189fd5faed8c225f6d4b92f4e8ccadbdc792b57c257eb86fe63555918d13b8",
    "signature": "0x54b683d95c64490210d8fcb9eb5319ab12ea6177604a46f62d463340585e06660ef85e7024e4ada8da502e2e86dcd9a1b882cd5c63fbc27e6b1fa9f1d3d1580d1b",
    "signer": "0xaC5cce7598F0Eb17aaE90fc5c8221B0312d77aFb",
    "userId": "329521655"
  }
}