{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3",
    "entityType": "User",
    "nonce": "0x05231eac6e4cd0f1a240bacf420c9258041db8aeed90531bedc45e85788864a2",
    "signature": "0x08dd82d6b48c38d0cf4e1f2cf96ab7d05984ac368869ca68063870976610176b1eb73a4de33231ba5b5a8164ed40bf3ac44454edabaffee666e1f326c8265a231c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}