{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x629b94a782679b6d4094b4e29f750203b3e0b9c3d535fc63d05c17e0e3a33e7f",
    "signature": "0x4dfda1e3ae1f954519ff13f7cc6f5fca4872c1260761247e095efd2cc19701223d4102ad9ab2cef936e956df94b76d7a3d7c9c231ac60a5b9322b734648d9ec41c",
    "signer": "0x87db7DB210Bc673A8cd93811B666e7527f0Cc154",
    "userId": "711686853"
  }
}