{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3e084dea02ffc8b474ec4ff2f4f830ad1fbc878588079c116dada78f0468743",
    "signature": "0x7076d90e5d81dc7da1e9ee2fcbaf03b94826559364a9f6cf399b04e4e7ef6ddb20bf56f127e9cb63569924df85d16d7aa76cf7a6d7be0e1fdf19f22ceb7bf0c51c",
    "signer": "0xF7f46C0A973d4914A8c677D98505d1F80aeECE65",
    "userId": "495570375"
  }
}