{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa7e446284fc7d33206ea50dc7fac6e3dbab2bdad6cfc99ca4fd29f6d6b460546",
    "signature": "0xfb08e7e99fc95f3cd72f177d3b0633f4b147814c14a65a5268a5f8fd9886a58b69016214b6691e7a23232eee0cf9ccace213784fcf175c4a4d70239b1e7d51921b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}