{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x369ae99b793494c53875dec4832f9474e6e0615dfeaa9aee12d2c76ba98ebde0",
    "signature": "0xde2c02fe6deab55216622786885b5b9847ecdd50eb987c91c8503ec9a80793897ec8bbfc143c7732e88421850c6bdd8dc60e6774ce6991067a47fe29efd9ce311c",
    "signer": "0x6AD8A511f55a98F773afb33eC22747a76AD9c2D6",
    "userId": "915337571"
  }
}