{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0xa713a073b4ed8fcd4cc91a484858b052ca2dc5bbed3e53217ef1b674a1e7faed",
    "signature": "0x6af4f5a3b5d3e23d7b7725b491ba6dcd23bb5aff718c9e0f9127ab21f690c73e79491a6cfb44a0aa433baf19b70f6ba6f5326021c556142bbacd617ff60926e01b",
    "signer": "0xb1B6758E0F16Ff306fc9054B49d73834a7610ACB",
    "userId": "912925478"
  }
}