{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237765",
    "entityType": "User",
    "nonce": "0xdb495e3058fa8fbbf99bdf397114afc5572346edf6f4ea8a1f72f6e8fbe06afd",
    "signature": "0xb54b925e1a10f6333b77599a9a2ac8f832c1be3aa6b1afaf976830f3dfa961c85b872ebe7cf17edc76f10969a4d718ebfb6c6d087e9168feb8b00b71fff275a61c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}