{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x188ace6d00db09bc673038c0cee121c7f1b45c9d378d6754e8d921ca1de90621",
    "signature": "0xdfa21c19862bed041dc48e622b10265972b6771f43b9b4fb735e88a3ceabdeed420fb43e4cb21875e00588d08d029d1bc1e25497b45b57fd548b73ba441e4b951b",
    "signer": "0x385724dD7df996433e732c73201a749C6B37f65A",
    "userId": "260480467"
  }
}