{
  "manageEntity": {
    "action": "Update",
    "entityId": "984275507",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf4831bd1a51439470b1b84d828a4d3e6cab38fc51c8a7b0d1434de273c3c76c6",
    "signature": "0xe47b7eea5d4a1fcea547bc80d31603c551294ca052f94f3f9b740926652acd3579fd83421a6a6d4bf00272e55b139079a2b4688f81d8b180b20fa5e30856c1dd1c",
    "signer": "0x513f250dA1aDEE033Ab571cdDFA90FCCf87A9dE7",
    "userId": "984275507"
  }
}