{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x5d05172242ec94144a960afe16c2d8a3a9656062a99bad6977831ac49aa640f3",
    "signature": "0xe1edfd554affe191845ae01084dfcfe1209cfc4502bf120cfd5cdf5744e406a2356040106c59f9fcc9cf61f6af4a7f680212417c097be056969a2cde1aa3a75b1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}