{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344578316",
    "entityType": "User",
    "nonce": "0xe167933761bc782e65aa76cb825a46a685c713680b58701a39209c10f73eaeb6",
    "signature": "0x315117f3bb740f21ce0c71b7ba6c74c05ca4573273bb9d11c300e4d990afae1b07389be0eb3d8f438f660d8c24410ba22c930fe9f1c1530b0eab062070a4c8061b",
    "signer": "0x2CD314789C9583D12b6F54862F9E2cf505880Ad9",
    "userId": "354640"
  }
}