{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37350",
    "entityType": "User",
    "nonce": "0x26348d9e6a48eb60c13cd634434873a11a2de37d91a374e1216ab17249837191",
    "signature": "0x01bf6faf9d7f11c7c4f034dc36a3fe5f43135b3af02f3ce588b1c7270d09531d69cba1d00122b4d722c84d93fb4fb6f385fa2655d9218d697ed651281cae19491c",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}