{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373433",
    "entityType": "User",
    "nonce": "0x1c8b427eb41b0d2d15a34ba59eaa52d2c7bb734784e39eb87881a4ba2781255f",
    "signature": "0xe71c3a532a002cf19fdba6e997497578e9ad0ae03b19090d1a2d50e3433efee839e918b408a39e7a42f6c33e80ecd097ee88bbb5e293a64cd2352f9fbbaa38191c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}