{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x0f805123543d10adfc5ee4266b0a5c58ddcdb5d819e5d41a32eeed3a80b734cb",
    "signature": "0x29975ac5d49d40f461bcd70a5b160122607be70b264609a2b2e7cc50efa1092b53df0b737c0ae4ccc9a839d2036a7870cb107ca44e83d47276b8e71cfe1a54c41c",
    "signer": "0x99FC58b9AbbC0C373045aaAE3Ca68Ac6e5b586f8",
    "userId": "590830414"
  }
}