{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632120348",
    "entityType": "User",
    "nonce": "0xed779b17dd8a2fa594bdbcdc4ac21117d7a7d21a0c52a1b4c5511ee0c16a59c2",
    "signature": "0x408a5dc12e38d4f16acb3100f3861e100fd9855f987face940a2b95539b5bc066d1709c57c616d87b4a0500866bd5d34d7909e2c3e82a34f23c5685f3dbe04601b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}