{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "69500",
    "entityType": "User",
    "nonce": "0x27a7acb7948181a25f5472e4f07bedcc1969a45185f7696b3c9ac6a96dafc9bb",
    "signature": "0xa2da12eb3fc1e9ea0dc7d3f31e4f976e07e055951961f2bffc9c5520b756f7120991b0faf89370e5fec9bddf35c95a44803934505f9691c0b456d8dc011b92881b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}