Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e0601cb4d0a4733ca89ae524a56782bac5d75f2d48a7e044804dd8bf717b25e8' 
  AND token = 'CCNmA45Jfuvx9/lIgn/aDg8lKybQ0zpGPey04JIwRdw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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