{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xf082ee7c70103e42a044fe341f3b0c3a8189447fe33acca66297fc0ed4b95aa0",
    "signature": "0xd3a835e222841907075081dda0db8f1f91af0a11a331240f8edfd8cb31b9166e45afa83ef341f18cb4c35fb7fd4652e5a24cb30b5536700ff9a2fe350fe723f21c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}