{
  "manageEntity": {
    "action": "Update",
    "entityId": "890925583",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3zqyfpnuleuindt7yhxjemn6o7zrla5336rrmfazy4pp6b55crea\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1072977885}]}}}",
    "nonce": "0x96215222333316ee4e137dd8f900eb0b114507a6b22ea07d44ae894e14a0b6c3",
    "signature": "0x08b8caee4a0d51b0a402e2b4a5f488c4da4848f45c4645af0265c7b23f8da92f288b9a03eb14704de104c458410936fde15ec220397113e0b6a587bbc85bd3bc1c",
    "signer": "0x8d9b589dE1945cCd95F387a72F34E3D1dEe0A497",
    "userId": "890925583"
  }
}