SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9a379d973e405dc86165b23f78f006220d4004474d3195ca1eaf3d2db2131280' 
  AND token = 'sQuqTikHyzn6SbsCgqZ5hDr0m+6XIIA2B7Iq8sLzE+M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00119

JSON explain

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