{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0x22b2388c705a09d2b280ff9ade6fbb59eef7089b3bc3ad664bea927a7a973cbe",
    "signature": "0x0aa6709cbbbf9fc766e4e8aa82a43a5d05a6f92768880b3f59c029f135d1dea64fa78701b695d5da5d44dfe71155676c2d8237adf9fb24fa046ab047c08c27d11c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}