{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100940",
    "entityType": "User",
    "nonce": "0x2f3f8ebc6aa6d3e2fe0228424fa914f328d48fea4f74136f6a9a225db236c5e8",
    "signature": "0x4c56f32ba8c4a769052407ada2712a71963c4d28593c0ffd703b7c332045de055bc4471876e59edc446106a417eff62cfe813cb599e8b100ac2ef238845666231c",
    "signer": "0xF83f8804040D884fCBAcD57d4Dbeaa764176F931",
    "userId": "455502808"
  }
}