{
  "manageEntity": {
    "action": "Update",
    "entityId": "583264378",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraytuslldlmg7su44bwtmfhfm4qiortgvsbqpgqcukuk2g52a6rcxq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":643838207},{\"type\":\"playlist\",\"playlist_id\":475892783},{\"type\":\"playlist\",\"playlist_id\":372817530}]}}}",
    "nonce": "0xbbaa35c28660a2bc62c01bf74fd0c78cab2fe0cde29c26e128704aa661a13696",
    "signature": "0x07f764b10a3a513f8f14c4a1b2c689b19761601c6378c7721347719c0fbf4b30455f2271841ac2b8766c5e8e80744e07fb8281b4afb312f73cc4ec51e7c08c651c",
    "signer": "0xCC0d2E17031Bb2a4822bc4c54ABE3a667ef3D494",
    "userId": "583264378"
  }
}