{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97575",
    "entityType": "User",
    "nonce": "0xdda21c210ca43d5308bbce12398a0d16fe4c824a51ab2c955bdbe62c8e0c548f",
    "signature": "0xc60d47c0b0fec87bcb4c7a21a2be649673759144de7bb96ae5f5833d9262ac85283c766cfb422c5c4fd806f5da0a4c5e27d44dd0a3b5ad0fa7bd5708c3b9a9561b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}