Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0337f99764fcbfbc6a1055c860a8f5d9e157d68f27afe68370e2de9eef98cfab' 
  AND token = 'd05MCRn8GlLll+Dup5vJd3iar6SkleTIC7a4/yyNu9M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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