{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326584",
    "entityType": "User",
    "nonce": "0x4f2802359e71acf629b2b55af33c92294c06c5ee0ea2b889f36486abc4648792",
    "signature": "0x45abfe21ac266727360c9219263e9bf9cfbe5625ea3f774b184d54fc58acb0ee77dfd842858634e7b056b20050a57d2a140a3d84a3457ddd5571f2d7c34a90c01b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}