{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "415165487",
    "entityType": "User",
    "nonce": "0xe360c358aa7c7eec43b8244872523aafe8e8d1a2aeed99152b5f2b15a10d7be7",
    "signature": "0x8fad86943c5e2f6198894cd16bbcac55423cd77e0b82fc419e59b52fbaa1ad6e49931ab5a1f214d3e73fecee93ae6cf4ef36425c29dad23b2d36f0c7f573d9d21c",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}