{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "608016415",
    "entityType": "User",
    "nonce": "0x07f132ec971488273fd6eadf80248030567d19bb8bb2d2d470513e1554f5a27a",
    "signature": "0xd8433de6b37ff63247c94fb1a07a65a477ee5c20e64c0341720ba3ea9e8b47d56695b6c6dc6b63297e83b3c029de62aff954b3fbd925cf29db10a3fc6095d3181c",
    "signer": "0xCCA88a6013df58bb68F420Ed2f4a3d2ac0C7405A",
    "userId": "322306"
  }
}