{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1487578",
    "entityType": "User",
    "nonce": "0xeb167b183aea79beeb5ed3733bcb317e8fc570346ae0331e6a54d4b875dce3d5",
    "signature": "0xb767cb2b2de04f167bf8e070e0abd684e22804a61e139d846448a550992fabd353e26b01c4fd9e30d5bde055baa34b1d3a92aebfd56d9f5e8f0288b19451dbd81c",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}