{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215666",
    "entityType": "User",
    "nonce": "0x2fd55478541a926c6b147174253d628b5d71c087b327430740e4a7549fb1c818",
    "signature": "0x0013b7e05f36795144282c18657932e73e05f6907224d3f62c78f7fc3935161c6e3bba6b750a1eac9ea5e84f1adc59015bbc0603f602f91229ac29d6a4aede311c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}