{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346509",
    "entityType": "User",
    "nonce": "0xa16a92f0695f5c948ea8a97f1e70c197ccf536066eb9fe5eaab580db87562a5f",
    "signature": "0xfe65f5cd69a66cb041cd818107ec3eb3ecd96c3bee3009f7275fb0fd288754ed6b16e6d0c38aa7ec1fee37f98f7f072b6f8587b3fcca8b7a2fbe675ff58e7f381c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}