{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0x6665c4df7d75081ee182ae805cb6eeed9a1a8a8a842cac777c450e328530944a",
    "signature": "0xa95f85fac107ecba516f75397f027c9e8681baf77104cf0075044d4aa9b7b72d74feb2cb4ae849f953bea57c64ca705ea49cd8fd14513db6666873d5051c0a031b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}