{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07ce3e9c64ceb6d839020b04013d7525708e48f4aa1b547c38be172b48f8ecb1",
    "signature": "0x1636fccb03bdf26e6b9b768dfdc9a71f61f75343e467ad207c8b5ab42ff170b56a609e29be1b8c0308d9e331a9c1b0e3eaeec2fc210a7f24bf82cc859ea4b4a11c",
    "signer": "0x836ba8b5354aBC22FC8D9990f473Ab61E2494DcB",
    "userId": "990192021"
  }
}