Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e4e2094d5b8b39e7574665681720678cffe8367901d6dc9cd16e6de9e20ccb2b' 
  AND token = '9pIQ/9rJFHytRvZADDgS8Bk/nESoI2luI6nqDbJJa/Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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