{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xe7b87e53c1624a608fb82b1903f43843a288c08f5695e7969029cbddb264fe96",
    "signature": "0xc485c464f7bfb91ab32f6d3f3cbfd4005d81cff671de88fb83f8eba25b733b330d340af153485fbb8b4e250fb6bc7a92f0ae1c179304c72c4b5f4918ea7b54201b",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}