{
  "manageEntity": {
    "action": "Update",
    "entityId": "732183916",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9930010883b23846f1397c3f96fe7bd05d0f10e2c3bd86ee95e8a5648b4806d",
    "signature": "0x64e2179310e0a70c148fba0fa1883efe57314710d1990892350104bd69db1ef920a386d4fcb28de5b3e661e479bd2d0c01670a5552711ad6bd0b8b5f639d7e001c",
    "signer": "0x973D027d08467999f96f13DE0654099070B83a03",
    "userId": "732183916"
  }
}