{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf94defe59143e658af48cd752b4abb142a867c30ab087b762cba57bbc3f3d388",
    "signature": "0x2ec29ac8882d23ff8013b7bf21082811105e9e3702857fa31b4167641ea26faa44584a7358a1b0aa8bd5f9f0fad2862be3cbe22e8f40ddf15fcabe512469e4ac1c",
    "signer": "0xf7Dfe4C36dA2a12e2687555F0186735FeF2A1431",
    "userId": "359712608"
  }
}