{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7349b66017253dbd905bd249f66653a8ad9518a0f55e92b61c59952399b3c692",
    "signature": "0x73e25d2d6af3714ad61c06687b38ecef6d4985bd9d4f6bc78be0c48ea573658524d2df044a948805d72eb656a6f1ceb22ffb87ccf070064ce296057d685bb61a1b",
    "signer": "0x2b2d3D0D8aAaDE4188b059ebcC3C79bb5a1D5a5b",
    "userId": "747318526"
  }
}