{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x38f6b03d1a38f32b6c79df077453caf3e88cb0734af6c5170e08115aef1608f0",
    "signature": "0x50fccb5ef98034fdf513b36ed7660398ed18084e73748b51414ea9825044cbd9744eb7a22b292779262ad5ef4ea568aee0594da897fe38215f61039c9828091d1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}