Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33341ce1acc2666a179dd1b2597b2e65d0f43f268994b937767bda120a5386ea' 
  AND token = 'yYsxLyZ2J9avJJwf4HT0apS/labxHqzgw6eppa1Lp1Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}