Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c088c7dba2050aa403d2b3927b1b2884e6eaf32e44613e701620337d83a1563c' 
  AND token = 'MFExGuoNNjGL79EDRL3cB/+9OSDprNyxXGJBPg4O0mE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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