{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48750",
    "entityType": "User",
    "nonce": "0x15fe66d69bf90803c4e37562754f25da2cc753179e6c8b2a6e7f76c77a9ceb2e",
    "signature": "0xb8ebbe9e9ec37181a74627b067bc9c9bacd60f0002451dc6981957a08ce48883470874848ebb7ea4afd745f9181234e19cded9bfa6af72869e53ba8ca07980861b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}