Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bed3327bbcf158f4540e4215a2eb94434ba275e52887f744fe63bc80af6bce62' 
  AND token = '2Qo32ClgPqpQ0PJuGE5+qnk8JJz1G4Ks4LJgESa3B3g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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