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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '976b62ca653d19a38e494b8d332e8f9d68205ade1ee76c3da6639280ca539db3' 
  AND token = 'XX4WWuh06uOFNX/eg9jZ0gy8V0yOgtf1GuWHaYnwmTs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}