{
  "manageEntity": {
    "action": "Update",
    "entityId": "506671051",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63ee7f3a0a9b22cf4fb0885786275c982f3c0036ecca0f4bc39ef677f17a07fb",
    "signature": "0x216d7ae18a3efedf00ba85851705022d169980e43774f0567dbbbc916430c4e9386e793dfe8864332e6c75cb623dcdfbdf5fdcc23295a4f40de6d99c50c87cab1b",
    "signer": "0x7b67b05bA0A04e49662cf931d72cCAE0839D71C2",
    "userId": "506671051"
  }
}