Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '4890067634de98cb07fef7c46d4f69ac87937f91674a93f8a09ae30ffe39272e' 
  AND token = 'ZPsAo0/jb4gl82pu+QoLL02ElcIoS00n6KMnh8MX8nU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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