{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x8ee36a8c36ca72dc3d93f26f0416e641fedc12476e5b44d0d370628418bfa81c",
    "signature": "0x4c1fafe962b6754d0d3ed18b586ca30003de0c0f77f25d0b5a7e295e024c08a515fe4d1325bf962df22a8b296163c020e3263b87e336fae8c2170036722988aa1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}