{
  "manageEntity": {
    "action": "Update",
    "entityId": "356982132",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawuanp4ttyikogvcbtiuje6e6s7usheonybqp2xiwtgj33g4loq2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1028355788},{\"type\":\"playlist\",\"playlist_id\":116440029},{\"type\":\"playlist\",\"playlist_id\":1482337640}]}}}",
    "nonce": "0x9e754656684dc685a616d7202ac9082eb3c2f404ce5c1158983b2d847d528e4e",
    "signature": "0xec95007bcf2a07c66f0a60d3fe33a46bfc4c08296aea7109601678f95d91d6447425f9343c530fbbaf108d3927b3f5c05fa8f4335617d5eddba14e1f74f3515c1c",
    "signer": "0x1cdFf70c3148938298C2f37555e69D65C18D364b",
    "userId": "356982132"
  }
}