{
  "manageEntity": {
    "action": "Update",
    "entityId": "328274267",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieravryqoefbtnb2s2sabgdlgpdklchd2kssfiokpu53ohn4aoigplmq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1890616256},{\"type\":\"playlist\",\"playlist_id\":1675576166},{\"type\":\"playlist\",\"playlist_id\":151131896},{\"type\":\"playlist\",\"playlist_id\":325943729}]}}}",
    "nonce": "0x28e66f763f406519e1a318c058481720c12594b29e080949403b0edc81c37b42",
    "signature": "0x56a2af061c00b7c740263cd25fdfea662ca1637015ea77a46fb34e5c048eb0880891f10299cb403f91f4c5fcc9076387e34c6e518eceb17cf2e4928b73393aaf1c",
    "signer": "0x3A2C2d6B2b96B324aEfe2Fb682DD70531b2De7d0",
    "userId": "328274267"
  }
}