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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '90117b78b4e441e0f5650fa6f5f5630165ed1f8a1c96ab39e4f8e79046f962ef' 
  AND token = '2u2DO0h0Di6XOJwLYtyjuWTXqsTHAa8H5Eazi6iClwE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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