{
  "manageEntity": {
    "action": "Update",
    "entityId": "759056113",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x79c18003a0c6f406625415a97809b0fc5c5508e57067e73f6c6b7bf7901ae820",
    "signature": "0xd149ee4a4e5b982567a421757a30808e96bf431800b0d7bf165aa677cdf95d046769f4257456a63644b1e09af30ed8d00e3029778f215d2f64a3bed7b39198821b",
    "signer": "0x10A676761D15b264dd4129304dEbb659a6522Cc2",
    "userId": "759056113"
  }
}