Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd99364713f10084ef98259c74a8f4f0310eea713c87d5b7b4b0b1267d883c48e' 
  AND token = 'PS3P0cNZ9toQgPpNB60y0Ub0pG/QUTsdjtfvSt86q/I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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