{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "744225",
    "entityType": "User",
    "nonce": "0xc4b8ab15dfe583a341eee98e76a1d1f01103da4c01e68c26a4707dd43acd5557",
    "signature": "0x7a94dcdaa1aba8dae9ca122faf0de53eec39c637fbf7d4df0e73aedf677c05784a9254d98ac913d8bc9a81db0d14b6075723cd48532be5b049e8047370346fb31c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}