{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb185bab2409ef398f2f954a67adb817b362759e4dd32aabc2d975e15b1d391e8",
    "signature": "0xcb9bacfc0f12b3b292480dec75c3452e5ee4b1b2c530aaf43fbcdd6a3799cce604cc1a9c1082793478fa896a6364bf58413815139840e9726e853315a71185301c",
    "signer": "0x724E540c9d3ed303Ef6F39F2C1F872Bffb05EE67",
    "userId": "651472472"
  }
}