Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '68cba8ca8791733fe8fcae0117a30ebecd6f908f6689c9f20134ad7e159a8d17' 
  AND token = 'ENMA84Hj/qO3N/W0O+aEx6SMofi46sLLVxln918sm4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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