{
  "manageEntity": {
    "action": "Update",
    "entityId": "881168674",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc589b3c93dbfd8e354d9131d9fee2d16627b13f27f01c93372031826bb664ca2",
    "signature": "0x6005f49ef3e4c5899b47325b8c5f36611bdf4431713549802ad00d484b0337536a44a40c0a43647539a2fc29de01bee54d3d6a36c7ed3ea6015f9921fdeaf05d1b",
    "signer": "0x3963c6fb42eb1abF4d62FEFEF3935BcA2BC25ADd",
    "userId": "881168674"
  }
}