Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63f50b0a8fd65db5101f58d7e5c28ae1146be5931253a0228beb0aec02525c52' 
  AND token = 'Mfyumv/k64cKbefrMCnfanHR9HEpEzCQMK8HkwT4sCE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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