Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09107b3ed86887fdc2f128eb8126afd3429badfeb129f34ac3798095fc070c4c' 
  AND token = 'rwgHCZrihuyFv2qcJrqo199tUFLxeTnVwQ2kq8hrRQc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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