{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "490478463",
    "entityType": "User",
    "nonce": "0xcb21a9d74a67f27bae0a93c566141fea2f5792e6ab0b66acac3bcef0f7fc4e40",
    "signature": "0x9a29daf67ebcece2c51beb88597780dd12d38cfb720f0f429ecb17e21f871fe42505e24b06a82be69e8c3758abae5b5db5b3d993f5fd8aa8e2d1128ed0d1aac21c",
    "signer": "0xdcFFfa8EB0B3CCeBBb8F585ceF6b6dAdfAb46292",
    "userId": "468388066"
  }
}