{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd71b7f3091a3c8fac1b2fa41411eb17af74014cecfa70ab51e03e81b674e1a22",
    "signature": "0x590fbcd269b600c6b17a322d6ae2fc46a48c22546b4d6bbfeb02e06a1f03912014c21cf1da8b0b5d731e1467353a42c74dd8c8dd8bef39f5981e4c83373abff81c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}