Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f54b0f2a05a0b9876f759208fb8f1bd734c00d66d5794b7420dbff388424833f' 
  AND token = 'iY2FAHav4MxZDhALPhSiZhgVP/kunxMqW4C2ld7bA6Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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