{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xd96b3b06a766e1c300bc364607dc030580f4ffc939711d106c4ff60f0f3c0fb3",
    "signature": "0xa32629e87c79286cabf722078a538ac8551453c89c6f1c9c08b715ad064496966926bf25c930d0362013992f9b2f68cbaa3439cba8cdcaa7e0e47674140a20bb1c",
    "signer": "0x3d3C9a78785e201CD119b8f74d7d88D131bB3cb9",
    "userId": "350266629"
  }
}