{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xa3e3152423e4151e49118fa1cc17f4424118012ecb8f78949a163b5745272350",
    "signature": "0x733b3ee72bcd8c56a5a58125c394e6c770fc9a89494e080bac96158b02e7309f101e4ec5eae66e06f0ccabf1889e7c71682c3fa40d7a5178bb57d7c8bb8baab81c",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}