{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487631973",
    "entityType": "User",
    "nonce": "0xa3a1b018f68f18cefdb84e3dc2ae2c8f9ab19aee69d19c1d3e76c69bcc275e9f",
    "signature": "0x12cd392f868b3b9d3bc22f0780ed46f686151571c1c45d81321e6e9b95ec13c6616335f8fb30eb6b8ce1632e5b71fbca65310f48d549701531fdc7e72fdefeb31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}