Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e756e6a3ec842882228ae84133064db598e966b15c565f14c57fc9e3ac4746f3' 
  AND token = 'Rpe0v3FXypNyRcP+BRPf3D4O+9hKZPr2PjiGbHqEiK4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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