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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '009de0e9471c98fe7282654b9f2a97cc8ae93a3dcb368868d367b630f2b8b4bc' 
  AND token = 'r7ND/ioUQezqf7+c7woZF9zX8v7uH9uTwz/nacPZcJg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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