{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787297",
    "entityType": "User",
    "nonce": "0xa3ddce5014a9c9e4be2f4861c27e4af0f2550e6ada8cdb4acb9a8c37bad49ff4",
    "signature": "0x2fab1c53040097623d580a1fca088a70cdc6dd52873df67fa1bc5988b0f018a86d3e7d6012ca56b4d51e2943d3eb1a57f08600d6c5108383a5e10879eeb0449c1c",
    "signer": "0x06Ad5789cE045C5B0AeB97849051a7385CA95B4a",
    "userId": "270209897"
  }
}