{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956935847",
    "entityType": "User",
    "nonce": "0x15bc3a5d75b40dba58ba0d3e59c3b7bf82e5c20777d86d220a58d1e8755caab8",
    "signature": "0xec8edfb4df0faf4136e86cba5fb2c6c059d8542478157f4fd483aa57f25493c40031bcff0fef9a8aac1e88e0afc100bd763c0b1e5e6d79b5c4da5581faf669701b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}