{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948625741",
    "entityType": "User",
    "nonce": "0x3712f3a2c5c628f81ebb7a3422c734fb893546c4d2c76cda4a2490c5f0a54a92",
    "signature": "0x6926717a1754928b0f88e5fc2b6ff83ae75cb6fac4356565187370885ec3fcab064eb9a0b61cc1bedda36ca707453cca8a04ca6aff3a154f8024b056486c7de91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}