{
  "manageEntity": {
    "action": "Update",
    "entityId": "164405765",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9ae242094bef5dc4c72f258a89df7ae5e66c37472b4d3584683bb14cc8b248fc",
    "signature": "0xdf235131926356e9646530aff6ab16770701c6bd8623826689d6bf3ab4cf0d287dd56366964175010dd2a6f5761eb2f885da3410eb7ec673c1f0321f31df478e1b",
    "signer": "0x262D36E4D0BE5Db62a56604580b9E534c7D97e1d",
    "userId": "164405765"
  }
}