{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83745",
    "entityType": "User",
    "nonce": "0x43dfdfd010d61ffa771f0238213e6d9ca0bfca1f4fb32d99a8d02c88a81a08fc",
    "signature": "0x12a667cf281907f92c878bdd67a9fda3594bc920e72ddf4b22c0225596771bf238c5afd247eba629443b8e424a45ef20c2f917fe56af141f8d0368862f6cfe601c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}