{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x4ed7022c0eb51ba369d18545d7e2f5c6c88261d74fe7653a3d2d3ccb2d52d138",
    "signature": "0xd59e89618be60a36829826b83985343537e6828d8c2c26ba6c8abd53d3c6bea2121a7ea10fdef52c1b08ac311ddb455761caac07c112286c3dbdae75f1fd16b31b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}