{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110410",
    "entityType": "User",
    "nonce": "0xa6f0661e6e052f57ab79f52af6b8d9398c0b63923789a132265ca12304622d3f",
    "signature": "0xa0874fd80c2a8643d3695916d8fc6cf6905634833e022dab17b08a36fc4ee35237df70309356f159d060e50f22a39ea92a099b640790b754ea9cffad662567131c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}