{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71899",
    "entityType": "User",
    "nonce": "0x7b26c75a34027f725aa87c5e44c7f50727d5890d0e4eea8683694a4b0468b7c8",
    "signature": "0x35758b33b0427e9013edebecc6460f77dacb9cfa14ad3dabe715ea582ae0ce7a628aa208f35ccfeebe52f567d45b3bfd4907416412c8243c78f07ecd63567f5f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}