{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775055",
    "entityType": "User",
    "nonce": "0x1aeb19e8836a9af7744e5be85c4cc423ad1f3b37cb8e33e343824b8c5e4d314d",
    "signature": "0x8f5cfae431da7211c309658dc457fdd68078b641e7fef5aa392df3181b00d4376523c57e5af1f14a27faa7deb83bcb176621459b402a19458c584a401bb259f41b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}