{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xa2ef6021a924ec4d0fb455ea7207728d69c658436463150a73e40e3e64329ba4",
    "signature": "0xcf5259ba8ec301ea1988c3f130f793bbb1143c4f8f79e470ae8d9d07cefe781a109c3e33eb6667354cfe4c80166879fdf943c95cf72de6e399f900928645b2a31c",
    "signer": "0x8141F8cFCc12f88E3a24549a825Fd1Ae77fB7e00",
    "userId": "214033353"
  }
}