{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893287807",
    "entityType": "User",
    "nonce": "0x6708888d6b73fa8a3c045114a0ad35f6e86e2ebb3347e17b5f8639cd6e48c2ba",
    "signature": "0xb347f77a7746a1ccc3856ec0d508ce895b04f4210d07faab165bd3007d784dd86c592b660e3bb610e06b5fae07327aa8c2504323d188711727f8e782b37fd2f11b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}