{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270949592",
    "entityType": "User",
    "nonce": "0x6a9c6a7acf4b969e8bce14abd5a096298c413206e1237651fdc471a3e8252cb9",
    "signature": "0x7dbbe0f299c4c6e2e7142d8294806c6b0c455e6beb465376ad4b37ebdc6b9f5f4fa345f2c5b64d4079a3e065ad0ca37c8ddea856226749cb94018f82e653d8351c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}