{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104936",
    "entityType": "User",
    "nonce": "0x49e2d9cbe1d8b8f90db949045767a683e945d888de5a8aa962d64f8494cbc2b4",
    "signature": "0x37ab3e6e85d83e7afdeed9600d0d54538e8c2a44707379cd1c2fbc4050037081530d58d9ce10ec7415778eb6a66c51db3f7bc633826453a8ee48cd0338a688491b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}