{
  "manageEntity": {
    "action": "Update",
    "entityId": "10756940",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc06c61fc10219fb9a768e1bcdeb9543283ea4929d66c3ff857228fdc4b8e7260",
    "signature": "0x37f63650d0f64f92c24b59c2979e9353cb2c38023d1d103e77a378f9c96d95ae2c4f4bff069e6bd04c2d0c621a356a8a64a891db57432181217801e797284a5e1c",
    "signer": "0x9740514a5C4C271dC838C59daa19E338049ffc49",
    "userId": "10756940"
  }
}