{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489026160",
    "entityType": "User",
    "nonce": "0x63373fa8802eb98ac038b9a058025af3a3c727d4bb10a6226b375efd219abce0",
    "signature": "0xfe1349c1d4d9b0af911290b7bef101fe83250e1932e7334d24756f574eb32966733eb9e1a70ce0405f8f58007bfefe8da7b0cb055c25a7c47cf94528784c775b1c",
    "signer": "0xd32819732210Ea4B81f5Ee202a2bcb7704aFEaA1",
    "userId": "714016562"
  }
}