{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343259028",
    "entityType": "User",
    "nonce": "0xc51a2cb440364eb10bdb3d9879a3352068a37aadca6e655fda35b218de732451",
    "signature": "0x0a33499262f24f238f89019ac47279b780d9bd0afcc892e5b31304566bd978061f33dddb43af9cae047e1339d652459606be6426fe02afba5716cea3226781131b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}