SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd3c70f7b150d01321c950c7b7982e7e4769d54682f782bf25aa9d3118091ac56' 
  AND token = 'EOHa/iyn/NYzbZtnpOrcqzFgj9l4mlG8VdOekLAja20=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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