{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "454094187",
    "entityType": "User",
    "nonce": "0xabbef58e3e5635aef8923b5923d6c2e57bf52d30cc99d5622b9b6881a2d4b343",
    "signature": "0x063fa3e5c8d80b7f999386c9aacf877b893e77d1ffe968755164ed1760c73e4926dce65fdf409a6df270e4e6532c11ab80f7b61563e5b906bcbe31fdafa8de851b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}