{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "362995705",
    "entityType": "User",
    "nonce": "0x12fdb48065d0a83c3fe057dba5b50db5839a374244ad035786ee1e5a9c4e224b",
    "signature": "0xac1ed2043d1e3c359d3ea0f0d93a8fb1cecb2e583272f4be4c04ee76e3a491fb089917d19ddcc0c251998a8c7f97dbb91828fee35cf8090989e7d5d8c9f39c8e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}