{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298833",
    "entityType": "User",
    "nonce": "0x70616a23716b481dc53cb88d76d3b82646cb26ebe54c7497fdb822bc419b2605",
    "signature": "0x9faa18a326a1509035bd1e97ea2294ab3d494f48a6998698b43ea461793337d83c585c88e0352bc123151270008cf0e6a5f9301624bd5692d66a4c8d04c3ecf01b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}