{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x4d9d72f3425ef16670c55a4af227277ba1f311497e84a8339b00396bba7ce482",
    "signature": "0x9c781e7e4eb8724bdfb58d45324df409cf3828d6da19c07e3d39b5cc21c7c0231fe26f1da4977369fa8502abdbdf673c74f2d991287e36f77bced78115c21bd51c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}