{
  "manageEntity": {
    "action": "Update",
    "entityId": "163260",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasfeokmw644ge5v47rhgtwhtlx5qy7bbxfhrrkszqjnaovjwcyguq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":122788},{\"type\":\"playlist\",\"playlist_id\":1720889418},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":66758}]}}}",
    "nonce": "0x1f3c7d3dcbf250ded625f422a7992b0d78c828d1c6315bf88416acb8a822fbc9",
    "signature": "0xe2af19042cac9a060af957b2f2b37eccd7248a6b2cd3dfd6e7155f67404c06dd20ae2020d409a31dbb814b492a746bc114ab2e171b9b01a2266b3f164a921e741c",
    "signer": "0x7e777EBa3114d70a87d94d8073a444911a00c100",
    "userId": "163260"
  }
}