{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195442",
    "entityType": "User",
    "nonce": "0xc6f0c80b9667254bd49f949936f7603b32c7b9128c2c3e86a1f6de9bfbb15da6",
    "signature": "0xf9cb361a19f10e615cead0aa0be20126f45cffd52f46131db1b0c3e3f75e0487043132ac1ee57b41f7a8a98347f8aa91f4c328535e782a6d4c0b3e4469e92cf51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}