{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51345",
    "entityType": "User",
    "nonce": "0xbec08cd3c3ce19fbdaeb366efc5d22c3ba66e4e84e7ba85c3a03b0a08904560d",
    "signature": "0x08191e3d7f1cdc8f4d0aa3162433bb2fc042bcf5a676b3567854d94cadc0db484dec79c37131fde236ff5739acd7a92e1f4173147fd3df8b9a6f0af2e49316b11c",
    "signer": "0xe28A05dF906d6A86C4Dd804b23747E87A9a10BA3",
    "userId": "403179"
  }
}