Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4324654a230c6bee4476f04bd4d243ab75d032836049e848a9bf1519e44d3fa5' 
  AND token = '+L8RopGfoh8QaFsORM3ZfbxOMK9u9mB2SB+SGxMWoP0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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