{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0x91defbbe2fa359723e18ed4bdcacb61c0e89bd55347e58a06c2a8e7b669772d3",
    "signature": "0x8d7a8fc865f90a9bc931feca18af742393537a0cb00bead263356fcceac8248e28995a38b588710d884ba456a1d65b1a4cb571108ec175e3d2962c4e5816cdb41c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}