{
  "manageEntity": {
    "action": "Update",
    "entityId": "800127364",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x89ba055d1114a0633a08578897132235bd73709be106954d17390092383adc3c",
    "signature": "0x822381089fa61a9019ab2d8039972e03d807020a9dd3161e902a6af87fc7a3fc16bec824e63a71884c84bf55f6d4ad73f57cce428607dcb8ecfcbf1bdc44e8f31b",
    "signer": "0xe4afcc6e1c8bA44DEc449fe3DB99CB195ece289D",
    "userId": "800127364"
  }
}