{
  "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": "0xf6083ba522f594bbe85c1210acc0863c0bd61fe9e1027536d5069c4666fca7c1",
    "signature": "0x685ba2ebba0520e2501fc6541bbe0947841c700c7b65784ad1a9ca95b6dd2bd815cb9aebf4303db2fc27da98a2265f0dada531f582a92928a224db6a45deb39e1b",
    "signer": "0x7e777EBa3114d70a87d94d8073a444911a00c100",
    "userId": "163260"
  }
}