{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x14f8e2d683c40c85e27a11c0818b29ee6f8a523f053a59123effc5252485ada3",
    "signature": "0xa6a5b4422e366ab9b19083eae3cd215871b447276ad43f7a6d7791ef8c28c0f238711e4770808b3783f97c2744b0c49dbcc0d23c04f76ce2d26a61721f5260bd1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}