Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '92cb0e649cf7d48a56b0e3c59ecd8d8fe909db1c963138c1e666d0af7427edd9' 
  AND token = 'coyWRWUwNucHz71oqZ59kB2UvR8OZLw+dx+6LlDgFHQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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