{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa3da4608a3f6f4f5302e18c752c2bec1426cbab3e716838def90160eef04e3f9",
    "signature": "0x739fd3e03ad8fc9066a577c1ea69c351f58f07b630450b2d50c11140391535d13f01c2a58a185dfd1596d29866c775a100e095e11ae5a1e0d3d0ccecc9cee8451c",
    "signer": "0xBFDbEAFA4a3183694Ff7b8A519f7BA2Ec5e34AE3",
    "userId": "681961924"
  }
}