{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104731",
    "entityType": "User",
    "nonce": "0xbcb8ffb671c08240f6ef99f29f0a4aa35fcdcd9f1b04101053399262de398a22",
    "signature": "0x4209fcc8d454c3e4bafde7c630801a1b3c31161a01c36d3050992e5bf1e9ac904e28968b53262a81695631539a1660592e60e718cf02d663c8b46ebfb1cea2271c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}