{
  "manageEntity": {
    "action": "Update",
    "entityId": "297137728",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarx4nv32s6it2l3xsujh6b4vqqjtrckk2hj3nkzlgduhzj4jrytwa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":158844497}]}}}",
    "nonce": "0xe227b4efc6f077f9ad2bf8627d2c8ab8af51fae1f8ef1d68ff3ba04ba59d8ccd",
    "signature": "0x941488af7c13f344b0c8542cf7c23ae3db0b94c522970b03d4106dc3cb905c4e36e57479f339bfdf9a25a38749b11d0061a7aa42fdf60d37e0f530452188a20b1c",
    "signer": "0x001bE4DDDeCc90Fb4A0AA9Db92141E3ADc0A7698",
    "userId": "297137728"
  }
}