Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6baa17b5539b23c69b50ef776ac18117f2028fa1f8d3dab8a061520b64ec45cb' 
  AND token = '6ttRz00Syzz8D8dBPViEOSYcGFfyE5CBmNqUFYb90ZI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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