{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0x720689e435f510b513f75175934702b492ae5492f25bd55aa3a4adb3f5915d01",
    "signature": "0x97182d4a602c7b8bcdaa96e8495ef5d5e2b5e213b61ef64dfe87dba393a741b35a50a773cfd46b4eecc1deba5303c6a7e527248f0c175ef16b1051a8626624321b",
    "signer": "0x6DFC9b2081230853d5F4203e1e3232ed22612526",
    "userId": "535575"
  }
}