{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175853",
    "entityType": "User",
    "nonce": "0x6bebfae7834d2cabd82eb8c65f0490c473c08250d9d551fa49d6c5f46843454a",
    "signature": "0x1242c46eb2e21ffca143630fc2f0b6d7147ceebb7e22289dbdf3763cc275091123ad6d9722b5e9ff113432f06331854bc7a17db4a6e20b5285828bb9e4538f181c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}