{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923028519",
    "entityType": "User",
    "nonce": "0x9835a1d5edb8e1d1d5a4f43465de7b590c637c5faac7b3bac254f24d03c2268b",
    "signature": "0xf1d9fc53c60fef4c5f9b287a98e8ac3802045029711708ab4fe0d5dd3828d03e30e7c470d98836165e7b8f35ff01aa3232023eee2d8118eacc303304c565fc2e1b",
    "signer": "0xc1C84e5C06F7dc5824672906AC6E51CDfeb90aeA",
    "userId": "447798047"
  }
}