Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '08fa56cda988261e1022d373b660098d1c2b9dee0a0ee8319a74c12f42b582b2' 
  AND token = '2tSXgzcPV5D66QFRnRcETHIppcQ0Q0fil4U2HWNt8GQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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