{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294909311",
    "entityType": "User",
    "nonce": "0x229f0271109180f19ee6d603d22f6160f27e4a24f95a19793981a3dac9e24243",
    "signature": "0x30cfa0501d7479391668ad50d6599c40c0ba6a8da4364fcf39af8f6772bbdb9c3ca4d08c3892d5498a200f2da4de48bc87af73f847afb37857d2aca4d47f8a5b1b",
    "signer": "0x7485DFa6dD3242CF70f4eC6EcFebD9Be63f48c5f",
    "userId": "527928318"
  }
}