{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86190102dbf6ec7ce4baefe8ecdc18a81835b615d13d49538887f452fddddb93",
    "signature": "0x874f285c0c2579dae17e2f1a0e8b0fdfb896678f8d9d39a658e609b60cb80d3e498f0d7564b67d7b4b86fe4f6a677e4ec0b1e84ed2d6899c0e039cd964d6f87c1b",
    "signer": "0xEfe2506974f74DdC2330aD9808578CA7B6fBe45E",
    "userId": "176221506"
  }
}