{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33450354",
    "entityType": "User",
    "nonce": "0x60457496223c8f82883d10e1a1c370a3c79fa44b33244ec55de7199731a5957a",
    "signature": "0x44178ba884d503fbcdedc28ec559df85f064d437aad4188f63f7bc0dd6634d145ad01e2c47e3abb82baa6aaf13287dbe54b34394728beaecf6d37d5669f5abc41c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}