{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "950478625",
    "entityType": "User",
    "nonce": "0x84c504f37537fa26d56fbdeaf01a0a2be4f6c6c3d5a5fe5211a8390ae96a1fd0",
    "signature": "0xe9875b5837f45f9f6c2640835a1cf717f60ea522bcd09d9d25bc8c012f1b4bec652a4f99e2eb067e730fcf7b6c6fc098faa1f2dda7b1f800d5e06884010776561b",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}