{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x7950b188618c67d48eb67476f7cf7a975bb6c39e55af384766c0d3fc77044835",
    "signature": "0xf42cd5190416908c9e5bb0476839620e8580b0f9531a10e0df5179edf014d6dc530182d75936f48ed88d365e970224aba0fc74b543da5bc5c4b797d25022e7d01b",
    "signer": "0x922cFe33eBCAD88842a62dA4e471f393BC78FaA1",
    "userId": "751061782"
  }
}