{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128337",
    "entityType": "User",
    "nonce": "0xe3e6a05def0f7f981728e4d72e4f859a55be698c4d0d625d3bfe5d398190935f",
    "signature": "0x0e1f554b4ff6bb1d1894429b11a4008f4fa2a6d17edfe9d8b188a008d0890e442237220913521188b68ed88ddd1ba5c1a681aa5e698dae9fbd5961f1a9a9334b1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}