{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0xab0b0f88c9e118f4df6165af2249f9dd7ddb621d795eba2d95e6a05d68dd811c",
    "signature": "0x47bc064d212440f3617a7e45e231b32c8f929dc835fe0f3ca967b59c4580f5714ed6ca7b64df8af192dd322f09cc3a46c3131be06ea284b49288a338ac1f275f1c",
    "signer": "0x73C69e0c0a50f0E228106C863e362C350a86Af87",
    "userId": "190031"
  }
}