{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fad96e0d4f6ba41c6378d0d241602e900601ae9b78b57e5951da3a98fa32e30",
    "signature": "0x38f0f2d864954338bf51dc3380e9cdc06318e83bd701c7e1d3e0319047760b401f462254a37debba7a786cf12dfb4da8bf6635aa665162f32cf9f9f614ae710e1c",
    "signer": "0xE16A95088dE5386EA421089f192980713fd401aF",
    "userId": "114035884"
  }
}