{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916107216",
    "entityType": "User",
    "nonce": "0x14eadd7ee1fcab3ac7c0b7d3e14d02050eec878090ee333cbb4899399503a09f",
    "signature": "0xc80359e24b9bd8b1861343ed146afbc591c70fc363b3f5b1f85e94d6f30b43077abae4c7cd50df1586c733826f1b3969b213b39d7c10297756c5a82acd6759371b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}