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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05f2e3d6a204d9381ce653aae2df95685c57eb431bdfbb008b11a2b5485ab0c9' 
  AND token = 'Qlg3esIndskm2sWMpK00sVESocpyVjqv/xSfPOG0r68=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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