{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115645",
    "entityType": "User",
    "nonce": "0xf2d57d7f3dce9c8d26dbbb1c676b1e9138feb4c54f637a3d8452159041e64fb1",
    "signature": "0xb0c708e8b2010a886ffb8845e5d38b28d3486cea686311b50272e73b035a68131e7f2cc3ebf9b0834852ee60287f352f6094fe0b6fc2e97537ce48580ceea46d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}