{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5a999c91bc2b1a1396649c0f456e08cd735080d2ba125ec8ebbaf12faa09b50",
    "signature": "0xa028f3856b6bf323f3aed946c57a0a786727e6c3580913610e43fa53f60bd952158db41f4061f4e276f7938d8a4e17e2639dfcf5b28d1a97a289021fc26bf5e91c",
    "signer": "0xCE1807CbF44d0BF3961D9A4B757dA508604b77E6",
    "userId": "157032641"
  }
}