{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "834778173",
    "entityType": "User",
    "nonce": "0xe405c0dbee5f7860219d4d04d441ed7f17984a2f71620ac5617e4c07cdef5735",
    "signature": "0x79c592af8e25e10cec5f8e08c4cdc7fb9ea6430cdb224b8b6ec20d3fc7d41b60693e3034bc14cee5234d3832bc46df741e9dd1d601bda1e42c745010c97a6e0b1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}