{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x3e4a1634a2587044444bc25a8df5fa70d3c27da77b90a5ac785fa08dd2a53a20",
    "signature": "0x16e49ca42a1b3c8143534139d455c2a4263c5afeb201852763c2c9300858081e6b6d7b01de4c9f749bd6092971165d55b0e4a41bb35ebf4d0492e53e9b88a1091c",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}