{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "860650726",
    "entityType": "User",
    "nonce": "0xbf08aa6d975851413db9aa8c94779fdbecb894ef1a9ddc59ee968a028a961e3f",
    "signature": "0xd2dc84b551001edbdb339ababc5b342717fae5109d147ebeec33904228ce60d320985439e1388430f5a5ce6549bbbe29493a4307431dd1b49b5cbca128531bc71b",
    "signer": "0x7a75a4f6Db403e120768B73C5e7dA9BD6eF0306E",
    "userId": "547641018"
  }
}