{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa544062c809abb0480798220ef8c5945a76683c445c8c79a809bb2a32d882cd1",
    "signature": "0x197908ebebe638d32a887e5c4ef8c52c94584b8dfdb63c1fa4a04add076cad3166bbd705ad043cfa2fc534a338eb8f0d84e7f231fffb50c9ed3b4e722f80066e1c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}