{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "779540779",
    "entityType": "User",
    "nonce": "0x35057800428d634ff8b398664d3770177ccda2b27303c412ac559d0746655a96",
    "signature": "0x795e27b8609d742b3c71b8cce0674629b221007522f755526208bf84c5b85a7e28b336f9edddc01c07529c49b3f6d5758b1f7ad505f5bbab0cd206e120f9c5be1c",
    "signer": "0x19c6AdAf810e02dAbB2538fE39fBeed42086A16b",
    "userId": "368672811"
  }
}