{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x2afc924b06a8e458225be69c5623a208b9e87b3711f115fba4afe1edcddd2a4f",
    "signature": "0xd8372e105477fbc86c9fdd88326f9abce6105b46343afa0ee2487ab373a568af3f4db5ebd05e8170f886fe96cbe51d4cef0b7c2a2400cce5e58a52c4cd82c02b1b",
    "signer": "0x60824E42B28a3C9D7A9eB6A6feFC1cfB7B41F7C2",
    "userId": "914462657"
  }
}