{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0xf4eae50f270babe1993214ba1c1f1683e60f96d1ce783ef019d91b29e1e7191e",
    "signature": "0x0fcc9176bc4c346956b026640e09018ca4794a62d680cda71bee6d9c3ac2b4f421bc8636dbd64a5ea3c0804217c09ef9291089a5fa7a414d0fd50596db35186e1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}