{
  "manageEntity": {
    "action": "Update",
    "entityId": "283867973",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xafd68b00b06fb040b9d702538aa38bfd475c6d83c89c7448111dc8a69d511f8f",
    "signature": "0x4c722dc4a250e808641cd35bfb85653fcc832728bb2144810cae66437d9d8719003de505f0b5e3c06a5c288dbcf153c14ef84197cc3ab9af4c55488230b17a761b",
    "signer": "0xad20693C78c00406cd7d18D003dAB2a271dC83e7",
    "userId": "283867973"
  }
}