SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '41444394e90fe2e202efd4659fe228f4f0824d5dc56de33c01bca3d48be5768e' 
  AND token = 'tDPkoju6w6/gq5xa3xJrsrkpKDzfpoGQGwJzKVbB0y8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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