{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x012ed910af89115604dbb8dc0cc32a191a0e1913bed6c781da9825b7bf105a0e",
    "signature": "0x4431ea864967469eb0439dd237d8ce687011ad8fb54edb151df960d8f1b989dd0c157cc9ad73e352199760a2caf911ccd092bc1a0b7c515c815dfb081453ff461b",
    "signer": "0x67E321241D4e44e5aB5D1c365505f0F33044C7BE",
    "userId": "460631539"
  }
}