Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cee2b552da534aab583fdee5728de1136e2f428acaab2b1a2f403e67e6d2d888' 
  AND token = 'Y0Kz4bGi7+BNLwPr2htnUjmhcd/osOzSgM97u996zJ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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