Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64bb2ac43aceb3857f936194a484de99e9cd8ca81a10de34c5f9348518ab41fb' 
  AND token = 'gJpCw6wcnpBH2M6C0vLOS8wNo0OPqkhdRneic2S8YrA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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