{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0xa7fd99d2066f6c4d8a47579eb62ce369cf64747ae4aba92c328eaca96a0cb3c9",
    "signature": "0x44ba36af28f2048eeab8453a3cfc33e1515f0a12efab7e8ee00f312b93d0cf917cb8fd175484d82aa327ca98817ebf5ca12453c58b383d599ee9741e86159a9c1b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}