{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0xef019d76bef76257f8a645e8de627892f14684f7bc56d94a42137c356ef22f0e",
    "signature": "0xb8158b3d379f4ef977de38886ec9a6c07352727915f6754480851e9b51558bc649b4284351aff83af7329a49f71d15410b08392da1c12858896e22504121c1f41b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}