Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a5472961e9fd8a917520f43e15610601e44f100c78a0aca9d9e7c4fc9e4b46b' 
  AND token = 'CQ1LR0War+Ity8u/A91bB1tPNuUeC0BYhfnjEGApojo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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