Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98a0b3d09751de3d9c3c7ca7f90baf15a1d32000119346b7296d7eb6ad6011ae' 
  AND token = 'J2NAaB3WdibEri41oTBtdRNBpiWIFT5mQoMb3qopmoI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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