{
  "manageEntity": {
    "action": "Update",
    "entityId": "983141272",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x55e65b635e3d678ba04088a79273b9080e9f88d7515562ce1c57fd1f3afee59d",
    "signature": "0xded50da223188e16bcc3e86b43e29fa22a80e1c25cfbc1ed17c8b091b7ff1c2279de525fb25567c2ae042830fc396cc63fd3ba514cc1b3e9171410c562bc0fa91b",
    "signer": "0x808e1c66560cF36D00CA8D920af2D9205114a2C7",
    "userId": "983141272"
  }
}