{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171892",
    "entityType": "User",
    "nonce": "0xb5e28395d4e03870d5ec9c81a24ceff4e4794fce5c3b7288561383d51a814271",
    "signature": "0x737e051f3abee939c5fa12a4a1ab1d7550789e1ba17069b492050b9adb1140dc2b50e3d047ece3bc4ea7f2ef1ba58e10d39604bc7263a2aab1ccd903720417f91b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}