{
  "manageEntity": {
    "action": "Update",
    "entityId": "936213876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2729bdd476a4b46c66b53cc50fba99a0039157d0071d3dbbf02dd2cbb6af853",
    "signature": "0x8b6a9443889a4c5e762da18791a4edf07cdd98507c29735f8ada99c66061e1b779d8daea19afa4725d26e79fc4a788eb50f327986a56bd564af3c006220e77811b",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}