{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x994f4a6df4abdf4163723a9669dc4212c15befea6784314c32b06621f9ce9364",
    "signature": "0x52841f1be42d4c340d4473a479061a37dfe29e034c741b7d1d3aa387478d578a71f49e5ed0ee6c560e36801cb47b4c45a0f72c7aea0300ccbfba6286e3781dac1c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}