{
  "manageEntity": {
    "action": "Update",
    "entityId": "18002392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramsdphu2o7ustfrzgzi2f4jhtlhomhlel42nk45uxfi2mc7e3m42a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1608367466},{\"type\":\"playlist\",\"playlist_id\":478691610}]}}}",
    "nonce": "0x2d0489c2ee11f766d41d30add5cdcc0306676254bb8be4280e1be6cc50a471a9",
    "signature": "0xd51a4046bbf8704279485185a0ce210e1872a933d7b2625865eb5fcaf12e3a811eb78a9908595ebfd4bcb5743283e36255269140b1f0c9b6a952fbc299fbf4061b",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}