Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1e335f1cf05b28d10f42974adfa065a646b9c00f934f10da9eb3694da57270ef' 
  AND token = 'QdleszEcuqm+A3sK3EPc89EwAIXl1/31PxUcL12yrXE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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