Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ab049cf973c543dbf20b0dea63283ed8f236646cce56201dba4163d833a7800' 
  AND token = 'J0Gpqq9om4o9DntR+g6Ho1DWNNwmtRNTPY8ZMtf/o0I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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