{
  "manageEntity": {
    "action": "Update",
    "entityId": "308558165",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahywsqurbzyb2gmcirtmdsisqqnfkmobjra6sxpxmqvs3ynrwobka\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2000619365},{\"type\":\"playlist\",\"playlist_id\":1877951072}]}}}",
    "nonce": "0x698a794daf202b5c09ea9a3c9f70ee6b0bbee04f0a3bd8fcdbea4c9dc981008a",
    "signature": "0xfaa094934395429df80a67737e41ac747ecb2d9344ec0fa2f89156e2e365c85b1c60418780bdb09861edf12a2ab941b5da49e302df2d195b5c47e3249b34e41c1c",
    "signer": "0xa85dce385eaA369F6073e0b6e242561d0870425C",
    "userId": "308558165"
  }
}