{
  "manageEntity": {
    "action": "Update",
    "entityId": "302687141",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc1a611e1a0614a9954e7f84fa88d6266e9eac6ec2c8bf39ff4c4a793ef345b6e",
    "signature": "0x329f3404b36d799e0934142680268ba6626df6080f9f80d589de9ef1f8d6cb59769e9bb2a8915327d5c8466fbf0365afb03e6d638b11c6665d96f845943cb9d41b",
    "signer": "0xc0f76D7a0b4B28398c597aBbCBC0ce0d51bAc5bd",
    "userId": "302687141"
  }
}