{
  "manageEntity": {
    "action": "Update",
    "entityId": "715573876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraugggxe3osdjhp25pcqute2bdx5wssuafun3ah7lnmq3ernvfpoyq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":629154592},{\"type\":\"playlist\",\"playlist_id\":375592719}]}}}",
    "nonce": "0x75f3dfc510fdc85c452b290a198ccdb896fa8a2eacbbae5d38648afd9cda34c7",
    "signature": "0x56da402d298e4bca53990581fff61a859609c03a6f9596f34e3d2760f37e6dff45adcae0175743b78242bfe8b2ce752d04578df1c93b288eb74f4543344cbf8a1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}