{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1437326",
    "entityType": "User",
    "nonce": "0xc6233d37c3cadbfa0dff906143ad9a9066d56f3f1983015114cc0cc6976ace9c",
    "signature": "0x4bdc83788b046ffc7313c478d2b933c056b6b9e07685d85df1003c1c0780e20a18ed0113466befb5e8dd0b7574f7ac7d5796fbc4427265db535f4a16bed79e4b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}