{
  "manageEntity": {
    "action": "Update",
    "entityId": "918602404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe2857c432a37a3f94b8b2c6642d8e40f4007a145098b1e347ad15dfb019c88a6",
    "signature": "0xc17f9a0a4a14b2cd23b341e7c5fdf98fa6fcc4cd18cfff1cfef323e0069fac096ecdbabc76d11c615c28aad4e87f257b7132a779ae05ea75943b72e7adab0ab51b",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}