{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5307724",
    "entityType": "User",
    "nonce": "0xd704a82767be2f9f754e4e2f69e2c0226ef655a38cff8e83a5b4830532f12580",
    "signature": "0xab7c6d38cb468d84eb83518fa43e334444ee19fba97bdabab99c130eb7ed91ad6daa7ba326e120d7c0ae28e9663ce27dd525919a9651ca0c2bfd0eeaeca904941b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}