{
  "manageEntity": {
    "action": "Update",
    "entityId": "231927648",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x952acab7f2f5bdcccc8c5a72a5d88149a531d77f0dee52cdd7ddc5c5a8044fb6",
    "signature": "0x2e3a5f5c5a34006d2af1214897afda76f24dc2ae211798b66e4ea12a678cb9a8293486436a0890faeb5b21be66f265c98fa9833cdb8d64c0eb4add84058fdf751b",
    "signer": "0x1E3Be314C2CB9306130B3860Dac78ecf29F26344",
    "userId": "231927648"
  }
}