{
  "manageEntity": {
    "action": "Update",
    "entityId": "47150955",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawuhxr7si4txx5g3fweujzqkq3d5fozb2awenizng23msw54yhw7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1159530167},{\"type\":\"playlist\",\"playlist_id\":1108679895},{\"type\":\"playlist\",\"playlist_id\":792690440},{\"type\":\"playlist\",\"playlist_id\":33881333}]}}}",
    "nonce": "0x0577e6b931ded2f232f8961bb856d92cac4c9a1abeb139488cea6ecf2a04a9f0",
    "signature": "0x0c420d2ad7cff739a332b7b47a790f044266d819dcbd5cd452e3f4d273aa34f271d9f3ec46a22559ab2f8c41cb6c1307c56d39010361f03099ac545a50cb0fcd1c",
    "signer": "0x645AAbB3BF848412862B16580BBDb4CEeBBf2EE6",
    "userId": "47150955"
  }
}