{
  "manageEntity": {
    "action": "Update",
    "entityId": "953219535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierai7jfzjeupaa5vtlt4poqtyxmioof5dbpy2o25bypkgk4z7ygchna\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2102334422}]}}}",
    "nonce": "0x7ab05e88f3f2aa9e980de33f1daa0b651cb0ce082c46362117f70c6fa65ed221",
    "signature": "0xcb396830d1fe9d0a4cfdf81851f759cd738382bb09dc1647b658c6bdcbf6c31f65928bf9c377746f5416a5fd35d92c2dffa71ea164c0efef4f86bfe69bfee0b01c",
    "signer": "0x165ac7dD4D63a6A37cBa24549d0c710442e9b68b",
    "userId": "953219535"
  }
}