{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227551098",
    "entityType": "User",
    "nonce": "0x037a9728f307d9f92a91cf965016ccac814d95dd287ed3cb0f7f8456bc822598",
    "signature": "0xc2b74e6f6bbe1c626bb5c694da9e6bb1d80b9664662c3acb44a1d6d18055555f71120ffbc47fc3010f3aa5255a40919314c707b3a445884b10154b820d68beb61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}