Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae12078b6a03fb632c0f504305498b3cabfb41f8e58067d0181ab3d884f67a80' 
  AND token = 'qY+CEXcj1iWUnm/p3rld9LwZkZ3v0o7I1gz1sH3Nu4w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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