{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x509e6df80a7079b5b9669551bab9f1e525542e7d7d385f015c4b205178817067",
    "signature": "0xada506ce31b0e257707c9048e5c107294818d0edeb41156ab41206d2e3f3a43672bd6f6b3d078d908de4e8729a56524a6062d390a24ec64a6f05bdbc269800701c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}