{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x21bf12e128f2f898a6901cce8b96bd6bbc7300e290b31f58558978127502dab0",
    "signature": "0x01b71790ea809534bcddc9327e9d6cc40c50f8a271cea63aea6774d2571bc08d15b9f25abee0addffbfbb72486c7d14bf4c7cfe35d7513b17f28bb24707d64661b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}