{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "662401989",
    "entityType": "User",
    "nonce": "0x3ef6a47eeadca912a11a49c48fe9a4beb47ef2c2c27987bf6946142e102a0c0f",
    "signature": "0xf47a744613169cc6c38e1aa1e575bfd5698e41632493153cfa1458cbb8d37dc65e3d8204c8fccb429374c6e57cc8de842a321d08a2763e0cb19215c10e5006ed1c",
    "signer": "0x547248A3D4550ccebbCD7b50a69417753fB15256",
    "userId": "79733524"
  }
}