Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '62c8f6ddb3c5da7744eeb76bb52396712088878aa39c612a0dafa4a33272d651' 
  AND token = 'TUTaLeQn/M+oAtbfBe4uOA+P3aOXDrSSG0bCEBpgh24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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