{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781847971",
    "entityType": "User",
    "nonce": "0x154bad2bed42538e800d75a7f18a1ea0d6e603c3586de547ecccc291f4806f7c",
    "signature": "0x24245ce9234876d647da5d9de660f67a363cae2a8f6c90ff0e1fffd12b9eda6c3f3bbc730bf418100b1f7142288cd5b384e1660ee93a19b93d7a5d5de18b542e1b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}