{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1db50953537a50cf9f7d62926dd339d534526f78b42e8495a6980d5ac330a2d4",
    "signature": "0xf1950b8eed7bdf08befd924444f5f5f1b7325f8dd53a06884450342b2ceeecdc538cd7a78a6becadf7dd8471006a0add26deed0967f2be865a759fea3cd446a51b",
    "signer": "0x3e6173ed837ACf94Bd7FC84ef67D28F63beb92cC",
    "userId": "664400706"
  }
}