Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f4d625c8014eaa69b2bb2ad07b939a1a6edd1325a5d42c75a2d4f8f01bcc6fb1' 
  AND token = '2bMHkBsLsiAqi9ozR6iU1MLhq1YlY6sh/j3nSpSyrr4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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