{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423042027",
    "entityType": "User",
    "nonce": "0x2b8b15b041c6f07b34052d54766240cfe892b0d6de1f7bd5f8216bf665a5abbe",
    "signature": "0x1115365b650192ab6226fea960636c5c3af794c52c968b5cc43eb37ac2646acd0cafc73cb06eed6574e459f09ea57efc0fe8b6fbf0457007b5ddf6f7f1d74a7b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}