{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x8046f635c0b2b2b3042dbeaee5e0a47199ca44a5bfd0c9253501d2354c5a4115",
    "signature": "0x86ed8c4fca8ce9ede08177895360e283e67837ee9a0b0c53c6d332e5add4d3551977da1c8b3186006b14c35a51480427bd6a64e7a848e654a6bae6316bceeb851c",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}