{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x9bd675fdb63f0bcaa15190cc6ac9f9187d8aec5568bd4d8651ddd999072c354e",
    "signature": "0x0ef143861ceb556db72af4ffd52fc97924612c8a53f33297d762cef6424ba33411631643d495294fba239a239983fafeeb7b1877e0174878b03b98d68be892ff1b",
    "signer": "0x571CC6D512D6f6fe43A3EDFE62123a52785d36fA",
    "userId": "388520"
  }
}