{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0xac27386fa2e3fa40a91196dcd0cb533622c5bd91fd616b9a83d6b264cce48cf7",
    "signature": "0xd8b791b1893df62d71106848218b36c929951467cd1e3d4c46d4fa10934a3cb0131a2a6c0c1c13fc43b2e5f1f6d87523089c968e4effe50b393d16042352f79d1c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}