{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42896",
    "entityType": "User",
    "nonce": "0x87427c6c706c3b0dc257087170a04d024f8792830bfa758bc1a4aed4e9fd0091",
    "signature": "0xd2f5038f4c0cc9c48843a7b4ef389bcf77cfeebb2fdde217589bfd0a270941bf618b427d0ebadfd87274a4ffcb7f7040e67f513bae8d9ae355b0997aaea25f661c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}