{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x41776cf68b2c7f30b84b534e5605eba71ebc96a8fddea1a138fe471b54664c32",
    "signature": "0xfd30215172c8a571e6e4577f6fa3b0d1e68c457b60c8dbf5c43452d2135360e023ee9cd7f155d9d45a07794038e0a37aa8e6da246f4149ac6b6a7d84574732ed1b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}