{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348435",
    "entityType": "User",
    "nonce": "0x75d6d7a40788abd6c926d8f9d72c7d6029d008ee91cdfe340d19fed36f944bae",
    "signature": "0xeab15461c5f874c5c651b90a428b9d65ca3cf35c997ddeab1027ca6eb79f52e5045e83b4124f9599c50fee451b76a6ebbd4c8d453039dc0fe6be61833c3a8ee81b",
    "signer": "0x92A54e77f13b9B7051f80e851698A1d518e3e2ec",
    "userId": "663465431"
  }
}