{
  "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": "0x641ffa5ee4e7b3e0679a1466046326cd4f79a366af67120b48eef12fc945f261",
    "signature": "0xc2f516d05fd7230b6718473882a8deb534544b368ad29e142afea8d2551ca16b37567ab2c6bc0d346758b67caa43d93848fb8c7ace09fcf3c0274f8bc4cfffe41b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}