{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147561",
    "entityType": "User",
    "nonce": "0x289ee0194a7ca476d73d1b53d108f43da7f90b64b1a1040dee491dd855019145",
    "signature": "0xd8200aeaf54d89dc7d4a039f685e9c0784bd0189a32313f3eb35fb2c1fa05b1e5e9eda9f32f9b2c18658834d954f676792720a44b589337482ddff21a835c31f1b",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}