{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270531",
    "entityType": "User",
    "nonce": "0x5f19c1e2e229be35438188945447162743bc95e00a1d44d9f572213e8815915d",
    "signature": "0x8846a81b02f159e5dda8f16270da81c20b6252b3dc6af1667eed7f10028b7acf3b7a4414c9965a59d2d536e181378da581c094512f516bb77d4a7117c6032a2b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}