{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "839152173",
    "entityType": "User",
    "nonce": "0x43238c055e7266a58ebe22fff37d7cab5d4d79cd419a61cb74887059868e1023",
    "signature": "0xbdfce58716d8f059f70013b9b6cdc25a841d1fbdde2913ab22fff683c86f58f86559ebe011665bf62bd4e91a3d3516c061709dd3ede874f3a542f07e7faf96541c",
    "signer": "0x049B6aA1Fd211222995eB8Cc354010E9425c2815",
    "userId": "1948721"
  }
}