Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a13ff4938a558d9662d00f3ac7185fa1a9ae2eee24b47e73aae00e3ee2d8116b' 
  AND token = '89Mk+8TJGfuctUpjjM60nGX3y1kSI6EsN7VE9BQ14j4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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