SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b22f5a343e7cb87edda1a16f091b33b1eafb987f6477d36c406b6f2d874ad725' 
  AND token = 'p+iO0jg2pP3Auq9Dq8lY6BfZxTEuBohuHUM857H0yuk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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