{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0x7e70590eff2e42ecded8b160df1b13cdfdbebe750a7ecd5a562f4ed691a3b800",
    "signature": "0xae61431471405f138d6f0c22f0adbb3f74dd2c9ca16d50c91d95f4e348c4811e03c94bda725890af1f4b808ff66fd93d7e9d967bc4c84d0b81280a4d3e5f1afc1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}