{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937139185",
    "entityType": "User",
    "nonce": "0xdb1db6a85617a0feabcff5b61f4660e52d1efeade54f6d18c36c0219e381857c",
    "signature": "0xd5eda834a0dc3caaa8ad078905edd7e5f611aba4d35f846efdd4053d1e446b6903b41ed6bed126def33fc976cc335a6fb421bdfeaa9ac04d0e41336f316b82b31c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}