{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54015",
    "entityType": "User",
    "nonce": "0x01c2547849b2034393e225a6f8ec4f18c1d5504ef0c3d28094decb9757101b0a",
    "signature": "0xce400e26009bfdbe1c40784529de16400cb0c6809a5b9d3f13d47ce086f38bd40466d604ea36274eb06a134926140dc9b762105c50eab4ec67c59d242a535cbc1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}