Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c012a5bc30b109dbba092f72b2326bcff013b07b45e11c4e7b3c004a931483ec' 
  AND token = 'IpkII9vpHko3+yu6zjBw3Oofq+r1GQOe7IU9k1e+HBg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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