{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104687",
    "entityType": "User",
    "nonce": "0xbcfe6ef6685757070cbd4d202a18ac4cd1c62589d3f65885d19dfd65494e96a3",
    "signature": "0xfaceea8f7db0ac1fc332e3ff0a413f6e7a7aeeb61b58d7f33dc9a4c24cdbac0d3a146d1980bf4a9fc2681485e339c7810072c3306b2137f307b4ba5eaa91d31f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}