{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4be329d08aedb701ab57fcc6ea8c8685fb0707f4a2a1f4185e354c47127282f5",
    "signature": "0xccac29acb2211f0ac7f77eafb200d47d9af4bdda3a2e693413a62352b42bbb280271293f223fa85525df6532adb9a55c0844387f2c4429538a2a6b8afdb193631c",
    "signer": "0x4D523B6f94F20c51715094A97548DA8695Df3a0a",
    "userId": "431871384"
  }
}