{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0xf3f97a8cd7282760d5f8be74f3f6c3bd5ca56789086ed397f58f97a6c3594195",
    "signature": "0x130cc51afd8a2a40f74a54717d0acc8b03c96d71284bb2c508b0f7c8f9921b7e2002f2b9e6ab39bd8db1ead364b8065f7bb6631b0d04247530e53316f1dc33a91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}