{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1784814",
    "entityType": "User",
    "nonce": "0x483d0a1ee1c8155d2288e8f8b966c86779678f26a818d574e92dcec2759388f2",
    "signature": "0x224441b2871fb0338a763e8d69fa83d527da161c6f2636700d4b494e8a98b0c52fb40364751c05914bfa4044e1328cc8bd3d9c2bbfdcd2bcf6a7b5d219c5ac1c1c",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}