Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f16144eee720024a4a80c543161d56c274e533055b2e747d72f021f1207c9285' 
  AND token = 'd+cLtCM030pdhaBuwWNDUVj3kHM/kTB0jp/VQd6g9cc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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