{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x80399819fda856a79ea684b75f49e4fafcb26d755bcf11bba0b54c06202f0422",
    "signature": "0x90c04694eae1e3d9ae3167c32213afbb3299906c739b0daaea27a920f9dc448d1dfba49b18c806462f0594d55f3d0dcbf2926edfdf6ce1604cd35a7d951de4d51c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}