{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "698393",
    "entityType": "User",
    "nonce": "0xd0faa89700225c9dad4ec7fdce91682267bacfd26d9841e388df745a1bd019c7",
    "signature": "0xb5daba74cb10976544bee37da4aef985fb14e95d3d5fde32fba661afffe2a31117446dd22c2f639cb0a62e73ecdec64dcc982e911608fbb8dcc24483450582121b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}