Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd5f4da780cc623eb7c827c4b8df2bd94cc38003a91a36b422f7bbbc2a3c6cb4a' 
  AND token = 'ooNzOInfGIXHYcXdw7tHeMKjNSL8fWl/1S7mlLMMPiI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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