{
  "manageEntity": {
    "action": "Update",
    "entityId": "154085595",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x81109146a094d4ee73629ae84e61fd860f8a5692f78977d40728d28af1f1fb5d",
    "signature": "0x1ab6fc8e7cde4bf9d74971fb2e65b41e58cc084c256b42de7e4d69c8b4ab0d740204669240f123fa7e26f3db47ff437c195692f872e9effa60fd053128d199db1c",
    "signer": "0x5b8BFea922d3E94c01D9b58040d1Cb4E8BE244EF",
    "userId": "154085595"
  }
}