Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9b30bba5479c870ab36b054780b7a6c163f8dd91b452f7f72d612c58c35ed6b1' 
  AND token = 'LqVSVmdHz+8nc8UWPshh7acErzJ3Hqj2bDFSk4++WZc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00065

JSON explain

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