{
  "manageEntity": {
    "action": "Update",
    "entityId": "487939004",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawfqebgt7suj22f55ox3s4st6zczk36mfzlfp7p3rggzzjukcvgpq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1236104233},{\"type\":\"playlist\",\"playlist_id\":1219921829}]}}}",
    "nonce": "0xe44cb940b1d4d89030a021dcd6dd2f31e26c5007e707cea1fcb1a317d25159e0",
    "signature": "0x21b9cb32f601bffceb0c0dc74afe134fd3bb87b047f176c66ff94183df9f1a640b2d0caac3e89c6e203d09042f64e3ac70c4cfdf541e6d3e48261679493893811b",
    "signer": "0x3A25162935B033F53f1C057B6EacdFA4472E0400",
    "userId": "487939004"
  }
}