{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xff22ef4d4b878dfc0f210f95853c1858b345bf92b46a624df4ca71a97e651a99",
    "signature": "0x58a56c32ce5d688f3d627e3191c1f20976a71fc244e3f6c15c84fcffc62aab06256185ec1c9e55de3f46d9ba24f76064dd7f104266b652f3bcac999555dd41a61c",
    "signer": "0x8f2ebBA3522f46F14A1fCDe5312c7B9EA0E59e15",
    "userId": "735463452"
  }
}