{
  "manageEntity": {
    "action": "Update",
    "entityId": "890925583",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakqngvguj3xis43w7lswf6ovvinbxf4yvqx6welx3z4mdltocsbma\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1072977885},{\"type\":\"playlist\",\"playlist_id\":609526352},{\"type\":\"playlist\",\"playlist_id\":2047265108}]}}}",
    "nonce": "0x00a52350fff65eb5ec24ecec04b22ab5b531f194bfc43001375f50db22aafb77",
    "signature": "0x62c1a3089c6969db3a407c397eb1c1443ebf25066b37a6dd2765200d9b4e26d553f0a6cb1ba5d8c532d978e0351208b025494a1d3a8e03b9d86f4d2e0a687cfe1b",
    "signer": "0x8d9b589dE1945cCd95F387a72F34E3D1dEe0A497",
    "userId": "890925583"
  }
}