Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'acde10e923bbe42e37f3562ad7dd7708a832380896407125b8580a57aefba88a' 
  AND token = 'suFidbLEtuRL47t9vKEiUL/pzHAdohClEeyyZ4s4cpE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}